Friday, March 28, 2008

Plasma vs LCD TVs

Technology on the world is very fast, now everyone must be know about plasma TV. For a layman, there seems to be no difference between a plasma and LCD TV. Both provide high-resolution, high-contrast images and both are flat, sleek and can be mounted on a wall. And then how about the diffenrence between two of them.

Technology between Plasma and LCD TV

Plasma TVs work with inert gases like xenon or neon, which are excited by electric pulses from specialized cells called pixels. This makes the gases glow. These glowing gases, in turn, produce the correct blend of red, blue and green light on the pixels. The pixels are illuminated by a fluorescent light bulb, which is driven by semiconductor software on the motherboard.

LCDs are actually thin film transistors (TFT), which contain liquid filled crystals between two plates of glass. LCDs work by blocking out unwanted light. When the signal hits the TFTs, they contort to a required angle, thus allowing only the requisite amount of light to pass through. A lamp behind the screen or a thin LCD bulb provides illumination to the TFT.

Strengths and weaknesses between Plasma and LCD TV

1. Plasma TVs show better contrasts. Contrast means the ratio between the blackest black and the whitest white. A plasma TV can produce contrasts of even 3000 to 1, which is very high by LCD standards. LCD TVs can provide contrasts up to 900 to 1. However, in LCD technology, even a low contrast ratio can produce much better images.

2. Plasma TVs produce colors by addition of red, blue and green while LCD TVs produce colors by blocking unwanted light from the spectrum. Hence, plasma TVs produce colors by additive principle, while LCD TVs do the same by subtractive principle. That's why plasma TVs are much better at producing colors than LCD TVs.

3. Plasma TVs also have wide viewing angles, as much as 160 degrees. Since LCD TVs produce images by an LCD lamp behind the screen, viewing angles aren't wide. LCD TVs produce differently colored images when viewed at higher horizontal angles.

4. LCD TVs have greater longevity. Most LCD TVs can last up to twice the lifetime of a plasma TV. LCD TVs are also better suited to usage at higher altitudes or while traveling, because LCD technology does not use any gases, and is not subjected to air pressure.

5. LCD TVs are also energy efficient, as they require less voltage. This helps in reducing electricity bills.

How about the prices ?

Earlier LCD TVs were priced much higher than plasma TVs. But due to stiff competition, their prices have come down drastically. According to their current standing, LCD TVs cost only marginally more than plasma TVs.


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Thursday, March 27, 2008

CRT vs LCD

Everybody that wants to build a home theater, always want for the best technology that they can afford. But for the best technology absolutely need extra money. In home theater always need a display systems. Do you really need the latest technology when it comes to home theater display systems ? Let's see the different.

CRT or cathode ray tube is the old standard for televisions. The principle behind it is a vacuum tube that consists of an electron gun that is directed towards a screen coated in phosphor. The electron gun fires electrons at the screen causing the phosphor to heat up. This action causes colors on the screen which are used to produce an image that you watch.

LCD or liquid crystal display is a large amount of tiny liquid crystals that are held between two electrodes. When a charge is passed from one electrode to the other via the liquid crystals they react to the charge. This reaction causes light to be emitted which creates an image that you watch.

The first thing that you will immediately notice about CRT TV's are that they are far cheaper than LCD TV's or any other latest technology. This is so for two reasons. The first is that the new technology has cost a lot of money to develop so the makers of these televisions have to charge a premium. This price will drop over time. The other reason is that a lot of marketing has gone into the new technologies so retailers are finding it hard to move CRT TV's. The bottom line if budget is a factor is that CRT is still the way to go.

Another thing About CRT's is that they are large and bulky. They need to be to fit in the vacuum tube. This means you need plenty of space to put them in. One of the majors benefits of LCD technology is that the television is a flat panel. It can be placed on a wall are does not take up space. If you have a small apartment or house then this might be a consideration.

CRT TV's have a wider viewing angle than LCD. Thus if you are off center with an LCD the vision might be distorted. Not so with CRT.

LCD TV's have excellent resolution. Whereas a CRT TV might have a resolution of 480, LCD can have up to 1080. They will also use the progressive scanning method as opposed to interlacing giving a more fluid image.

CRT technology has a better contrast ratio than LCD. This means there will be more distinction between the blacks images on the screen. Again, this will make things stand out better in dark movies.

LCD technology has a greater range of colors giving a vibrant picture as opposed to CRT.

Clearly LCD are the latest technology. More money will be put into improving the deficiencies of the technology so it will improve over time. The price will also drop. If, however, you are on a budget and you do not plan to view HDTV in the near future you can't go past the low prices of good quality CRT televisions.


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A Simple Home Theater Design Ideas

The first actual stuff of the electronics equipment is makes a home movie theatre and the problem is the location or the space in your home where you will position the system.

Most of the people think that setting up your own movie system is expensive and only rich people can afford it. But that's not true at all. Let's have a closer look at two types of home theatre systems. This will help you to make a decision on which is best for you.

A typical system has only 3 basic components. What are they?

1) Television (see the different about CRT vs LCD) to view the movies

2) DVD player to run the DVD/VCD

3) Speakers to create a good real theatre like effect.

When it comes to locating these three in a home there are two straightforward options available.

1) Locate them in a separate room

2) Locate them in an existing room with other things occupied

If you go with the first option then one great recommendation is that you hire a home theatre designer to do the job for you. This will ensure that you get the best possible design ideas to generate that dramatic effect.

A professional designer will help you on every aspect of the design process, including design ideas to which electronic equipment to buy (or not to buy). A professional designer will also help you on certain interior design aspects such as flooring patterns, acoustic treatments using acoustic panels on interior walls, placements of speakers, TV unit etc for better viewing, seating arrangements and their design. So it becomes a fairly good experience and you get the best quality theatre, the way you want it to be.

If you are tight on budget, then you can always convert a space in an existing room into a mini home theatre. Living room or a family room is good choice for this. In such type of setup you do however have certain limitations such as placement of speakers to create a "surround sound effect". This will have some limitation because design wise the living room is a part of the entire home plan and has it's own functional demands.

For a mini theater a TV with 29-inch screen, a DVD player and at least 3 speakers is fair enough for creating a good effect. Now in most cases you probably already own the TV and DVD player, so the only thing that remains is a nice speaker system that is compatible with the output of your TV and DVD player is necessary. Always remember that when you buy speakers make it a point to test the speakers in your home. Ask the store owner to play the speakers in your home because sometimes some speakers only sound good at the store but when you play then in your home, you may get a different effect because of the surrounding furniture pieces in the living or family room. There is an acoustic component attached to this whole experience, which must be taken into consideration.

All in all home theaters are easy to set up when you know how are you willing to spend and what kind of effect you are looking for. Many options are available today in the market. A little research can easily save you time and money when it comes to home theatre design ideas.


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Tuesday, March 25, 2008

Energy Efficiency - Easy Ways To Reduce Your Air Conditioning Use And Save Money

Energy efficiency refers to the reduction of energy used by specific end-use devices and systems, such as air conditioners, typically without affecting the quality of the services provided. Energy efficiency can be achieved many ways. In the case of your air conditioning one simple way to achieve this efficiency is by reducing your air conditioning needs.

An easy way to save money on air conditioning which is often overlooked is through the simple reduction of its use. While enjoying the cool benefits of air conditioning it is easy to overlook its expensive nature, due to the electricity required one has to also consider it's environmental cost. While being green isn't always easy, in this case, being green will save you money - by reducing your energy usage.

How To Reducing Your Air Conditioning Needs
  • Use alternate forms of in-house cooling such as ceiling fans or house fans. Unless you live in a very humid climate than ceiling fans, which can provide cooling by creating a low- level "wind chill" effect, are a good and relatively inexpensive choice. Ceiling fans are also rated by Energy Star so it's easy to find energy efficient models. In either case fan use substantially less energy then air conditioning systems and can go a long way in reducing your dependence on your air conditioner.
  • Change older single pane windows with newer more energy efficient double pane or even triple pane windows. More energy efficiency windows can reduce your air conditioning needs. If expense becomes a concern you can always opt to use drapes or window coverings that block out the sunlight effectively. Replacing your windows can improve their energy efficiency by up to 41% in the hot climate - when your air conditioning is used most.
  • Shade gardening. Maybe replacing your windows is expensive but maybe you have enough space for gardening consider planting shade trees on the sunny side of your home. The less direct sunlight that gets into your house, the less heat. Shade trees also have the added benefits of reducing local area CO2 pollution.
  • Change non-programmable thermostats with programmable versions. When you shop for a programmable thermostat, be sure to look for the Energy Star versions.
  • Install energy efficient roofing. Energy Star offers a number of different Reflective Roof Products that can reduce your peak air conditioning demand by as much as 10-15%.
  • Use light-colored or "cool" sidings or paints with a high Light Reflective Value (LRV). The higher the LRV the more the paint will reflect away heat instead of absorbing it. Keeping your house cooler by reflecting away heat will reduce your air conditioning needs.
  • Change your older/inefficient appliances such as old or secondary refrigerator or, replace incandescent light bulbs with LEDs. The less heat your appliances and inefficient lighting give off the less your air conditioner will have to compensate.
  • Unplug large consumer electronics when you aren't using them although in standby mode. Lots of newer electronics have a "standby mode" that keeps them ready for action. This "stanby mode" uses electricity and because the device is running at some level it will still be creating heat. When not in use,don't forget to unplug chargers for your smaller devices, too
  • Properly insulate your home. If you have a home that isn't properly insulated you can waste a lot of electricity when the cool air created by your air conditioner escapes.



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The History Of Air Conditioning

It is so easy in the modern world to take air conditioning for granted. With the advances in technology is now virtually unheard of for air conditioning not to be used in any public building. Anywhere where potential customers are being courted for their business, it would be very unwise to leave them in a state of extreme discomfort, due to the failure to keep the building's facilities in line with the competition. In government buildings, failure to maintain a comfortable environment would reflect extremely badly on those who are responsible for the upkeep of the building and, by association, the department that utilises it.

It has not always been this way. Air conditioning was, in days gone by, a preserve of the rich. Even as far back as Ancient Egypt and Ancient Persia, some form of primitive air conditioning system was in use in the palaces of the wealthy aristocrats. These early air conditioning units were based on using water, sometimes in conjunction with cold air, to cool the brickwork of the buildings. This kind of use for a valuable resource such as water, especially in the desert, was extravagant in the extreme and obviously only available to the ruling classes.

The major breakthrough in the history of air conditioning came from the famous British inventor and scientist Michael Faraday. Faraday's research proved that it was possible to compress and liquefy ammonia and then use the liquefied ammonia to cool the air by having it evaporate. It was nearly a century after Faraday, however, that the first serious application of this kind of technology was seen. This was not used to control the temperature of rooms, but to regulate temperature and humidity in commercial printing processes. Air conditioning technology evolved from this, to be applied in the regulation of temperature in rooms and buildings.

The term “air conditioning” did not actually exist until 1906. Stuart W. Cramer, a textile mill owner, first used it. Cramer had been experimenting with ways to ameliorate the effects of the dry air created by his industrial processes. The patent he filed had used the term in conjunction with “water conditioning”, which had already become a well-known and often-used term in the textile industry. The new developments that Cramer instigated had a dramatic effect on the air quality within his factory and, as a direct consequence, on productivity.

In recent years, the reputation of air conditioning technology has taken a severe blow. The gases used in the early days of air conditioning were very similar to the ammonia first used by Michael Faraday. These highly toxic chemicals were potentially lethal should they have escaped into the atmosphere. It was obviously necessary to try to produce a far safer alternative. The types of gas developed in the 1920s - chlorofluorocarbons and hydro fluorocarbons - were far safer to human beings and were used in many different types of air conditioning system in the twentieth century. Towards the end of the century it emerged that these gases were harmful to the earth's ozone layer and again the need has arisen for alternatives to be developed. Amid an ever-greater awareness of environmental impact new non-harmful gases have been developed and many of the old ones have been phased out. The future of air conditioning now looks promising, with ozone harming gases eliminated and a commitment to improving the energy efficiency of air conditioning systems.

By Michael Russell


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Monday, March 24, 2008

5 Simple Tips To Improve Home Security

Almost people thinking about improving home security, when thinking we immediately focusing on electronic devices like alarms, cameras, and so forth. And to be sure, all of those products have a role to play in a high quality home security plan. But actually there are some very simple things that anyone can do to raise the security level in and around their home with very little cost and effort.

Here is the list of 5 simple things that can help make your home more secure:

1. In generally maybe you the one of the folks that likes to leave a key to the front door of your house hidden under your doormat, or over the door frame, or within easy reach of your front door, you are just inviting a home break-in and making it easy for the burglar. Its not a good idea to hide your key outside at all therefore, but if you must, at least hide it a good distance away from the front door where no one would think to look.

2. The other one of most common ways that burglars can gain easy access to your home is through an open or unlocked window. This just makes it way too easy for them. If you likes to have your windows open, at least install safety locks that will only allow them to be open part of the way and not enough for someone to be able to climb through. And when you are away from the house, it's best to have the windows shut and locked at all times.

3. You will find houses that have trees and large shrubs up next to the house where someone could hide. That is a bad safety strategy, and it would be good for you to go outside and look at your home from the standpoint of an intruder. If you spot possible hiding places close to the house, do whatever is necessary to eliminate that danger. Prevention is your best protection in this area.

4. Darkness is one way, many home intrusions take place at night simply because darkness helps conceal suspicious behavior. So bright lights are an intruder's worst enemy. In view of that, some well-placed motion detection lights can do wonders for your home security. They are cheap and simple to install, and can be very effective in preventing break-ins.

5. If you have nice & expensive possessions, like an expensive car, keep it in the garage. Try to do as little as possible to attract attention to any pricey that you may have. So keep windows covered so that it is hard to see inside, and use shades at night to keep others from looking inside your home to see what valuables are there.

All of these ideas are very simple and easy to implement, but together they can raise your home security level right away.


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Drink mineral water is your way to better health

All of you exactly want to look and feel younger. All of you must be want to have great body, ideal weight. Do you have digestive problems or suffer from chronic sickness?

If you answer yes to any of these expressions & questions, you must read this one.

Our bodies are made up of 70% water; it is an essential nutrient for our body. Water is needed for virtually all body processes, from digestion to elimination. Water is involved in metabolism, circulation and detoxification. Your body needs water.

But not all water is created equal and because water is vital to our bodies and for our health, so we must drinking the best water available. Typically bottled and filtered water is better than drinking tap water. Distilled water is not recommended because everything has been taken out of it - including the minerals. We can say distilled water is dead water because it has no life in it.

The best water for your health is Alkaline Water. A water ionizer takes regular tap water and purifies and alkalizes it to create Alkaline Water.


Healthy Choice with a Water Ionizer

Regardless if you eat an watermelon or apple or a veggie casserole, all food generates waste. This waste is then removed from our body through our skin and when we eliminate. The problem is that many times our body can not get rid of all the waste it produces. This is due to several things including our dietary habits, stress, and our inability to properly digest our food. This acid waste builds up in our systems and show up in the form of i.e. cholesterol, kidney stones and arterial plaque. It also causes premature aging and disease. To help our bodies get rid of these wastes, we can decrease our intake of acidic foods such as coffee, alcohol, soft drinks and sugar and increase our consumption of alkaline foods like fresh fruits and vegetables, green drinks and alkaline water.

The pH scale measures the alkalinity of a substance. The scale ranges from 0 (pure acid) to 14 (pure alkaline) with 7 being neutral. In our blood we have substances which aid in stabilizing our blood pH. The blood pH must remain at a constant rate of 7.36. If the blood becomes too acidic the alkaline reserves will immediately raise the pH in order to maintain the blood pH at 7.36. These alkaline reserves consist of bicarbonates and we need these bicarbonates to get rid of the acid waste our body produces. If we don't have a sufficient amount of bicarbonates in our blood our health will be compromised and we won't be able to get rid of the acid waste from our body resulting in cholesterol, premature aging, kidney stones, etc..


Why do you need drink a Water Ionizer?

A Water Ionizer converts tap water to strong alkaline water with a high pH. By using a water ionizer and drinking alkaline water, you will increase the amount of bicarbonates which help our bodies get rid of acidic waste.

Alkaline water with only 5-6 molecules and is in a hexagonal shape has smaller molecules than regular tap water with 10-13 molecules with an irregular shape, so it can more easily absorbed into the body tissues because it has smaller water clusters. As a result, alkaline water from a water ionizer is 6 times more hydrating than regular water, offering improved detoxification and health benefits.

Alkaline Water is rich in oxygen and will increase the amount of oxygen in the blood, it will also increase your energy. This additional oxygen has antioxidant properties and helps to neutralize free radicals.


What is a Water Ionizer and how does it Work?

A water ionizer is a small appliance that typically sits on your counter, connected to your kitchen faucet. A special attachment redirects tap water from the faucet to the water ionizer. As the water moves through the water ionizer it is filtered through the activated charcoal. From there it passes into a chamber equipped with platinum coated titanium electrodes. This is where electrolysis takes place - the most important part of the process. During this process the water ionizer splits the water into 2 flows, alkaline water and acidic water, both offering incredible health benefits. The alkaline water comes out of the faucet in the sink - ready to drink! A separate hose coming from the water ionizer sits in the sink releases acidic (oxidized) water. This acidic water is excellent for sterilizing, washing hands, treating minor wounds and burns and insect bits. It destroys over 99% of bacteria, including E-Coli.

A water ionizer turns ordinary tap water into strong alkaline water with a high pH. It is a powerful antioxidant with antiaging properties and help to treat disease and many health problems. One of the best things you can do for your health is use a water ionizer and drink more water. After all, nothing is more important than your health.


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Sunday, March 23, 2008

Healthy Choice for Smokers

Are you smoker ? New technology builded looks like, feels like and tastes like a real cigarette. It is a completely non-flammable product that uses state of the art sophisticated micro-electronic technology to provide users a real smoking experience without the tobacco and tar found in real cigarettes. The actual cigarette body is an integrated structure made up of a cartridge, an atomization chamber, a smart chip controller and built in lithium battery. It is truly a healthier alternative.

Open Gamucci Electronic Cigarette for more information.

Friday, March 21, 2008

Tips On Best Home Automation Systems

When it comes to high-end whole house systems, they generally cost from $5,000 to $250,000. This price usually does not include installation fees, so take a good look at what the dealer is offering before agreeing to anything! When choosing to buy a high-end home automation system for your house you need to ensure it will be properly configured and installed, as these two areas can sometimes cost more than the system itself. There is no limit in what these systems can do, because, besides security and lighting, they can integrate any climate control, audio, video and entertainment systems your heart may desire. You can even get sprinkler and pool/spa control systems, so that your house becomes the most comfortable place on earth for you.

The various features and functions that high-end systems usually include need a rather complicated interface to the users. Otherwise, the control would be very complicated. Because a touch screen can have the buttons specially designed for each and every house, the best solution for the control of high-end systems is choosing the more expensive LCD technology the touch screens offer. The advantage is a plus in comfort to the users and to the programmers too. Other types of interfaces that have recently entered the market include keypad stations with built-in temperature sensors and intercoms. Interesting option I might add, as most of the manufacturers will soon choose to introduce this on a wide scale.

There are some types of high-end systems that come directly with sophisticated lighting control subsystems. Additionally to that, you will get all the key components for a complete home automation system that you can customize according to your needs and wishes. Other types of home automation systems are less expensive, but the truth of the matter is that the only thing you will get for such a small amount of money you invested is a security, lighting and temperature control package. You will have to add the other modules on your own expenses. It is very much like a Do-It-Yourself toolkit that you can play around with. Not to speak about the integrated control of audio and video gear! This may cost a small fortune, if you asked me.The fact is that not all people are fans of these DIY things. People are much more interested in pre-programmed or plug-and-play systems.

Therefore, before deciding upon a certain high-end system for your home, you must absolutely study the market in order to choose the solution that will best fit your house automation needs.

David Rumsey

Tuesday, March 18, 2008

Home Automation System

We may not have robots and computers performing every menial task from cooking dinner to dressing us for work, but a home automation system brings the future a little bit closer. A home automation system gives us the ability to control the electronic devices in our homes from wherever we are. Today's technology makes it possible to turn on your air conditioner or heater, pan a surveillance camera through your living room, or even record your favorite TV show from
anywhere in the world.

How does a home automation system work?

Three components comprise a home automation system: structured wiring, a connection center, and a computer-like microprocessor. Professional installers run the structured wiring throughout your home to the various hubs located in the connection center. The connection center, which is the nucleus of your home automation system, houses the microprocessor and connects it to the numerous hubs. The home automation system microprocessor allows you to operate the various home electronic systems and appliances wired into your home automation center from: touch screens, wireless remote controls and keypads anywhere in the world via the Internet.

What are the possibilities with a home automation system?

In today's day and age, we go 100 mph, 24 hours a day, seven days a week. The more packed our calendars get, the shorter the days seem. A home automation system rids our lives of tedious tasks that seem to take up more and more of our time. The example below shows how a home automation system can simplify your life.

You're getting ready to leave work on Friday afternoon, and you start to think about your day. (1) dropped kids at school/daycare at 7:30 a.m. (2) hit the gym at 7:45 a.m. (3) got to the office at 9 a.m. (4) drove to the cleaners on your lunch break (5) had 45-minute parent-teacher conference at 1 p.m. (6) pick up kids at 5 p.m. (7) cook dinner for your in-laws at 8 p.m.

Now, imagine right before shutting down your computer at work you log onto your home automation system, click an icon, and your home air conditioner turns on. You can also see on the monitor, via your security cameras, that you forgot to start the dishwasher and washing machine. Clicking another icon starts them both.

While sitting in traffic, you open your PDA (Personal Digital Assistants) and hit a button, which turns on your oven to preheat. You also realize it's getting dark, so punching another button turns on your front-porch lights. When you turn into your neighborhood, you click your wireless remote, and your home automation system turns on the garage lights and opens the door, disables your security system, starts a pot of coffee brewing, and begins playing your favorite jazz song over your audio system.

The appliances you depend on and the activities you enjoy in your home become stress-free and easier to manage when you install a home automation system.

What is smart home

A smart home or building is a home or building, usually a new one, that is equipped with special structured wiring to enable occupants to remotely control or program an array of automated home electronic devices by entering a single command. For example, a homeowner on vacation can use a Touchtone phone to arm a home security system, control temperature gauges, switch appliances on or off, control lighting, program a home theater or entertainment system, and perform many other tasks.

The field of home automation is expanding rapidly as electronic technologies converge. The home network encompasses communications, entertainment, security, convenience, and information systems.